I actually had an XP-L not make contact in a reflow to a 20mm Noctigon yesterday. Put the light together (X6) and it wouldn’t work. I’ve re-flowed hundreds now and that hasn’t happened in forever!
Got in a hurry and didn’t let the plate heat up good. The smaller emitters don’t weigh enough to seat em down onto the star when the solder doesn’t flow quickly. And I’ve found that pushing them down can get them off center and cause a short between the thermal pad and connection with overflow under the emitter.
Just goes to show, with this game…it’s always something!
I always give my emitters a light tap on the dome when I see the solder liquify under them (when the emitter self aligns to the pads) to make sure they are seated and it squishes out any extra solder that might be underneath…but your mileage may vary
cncyana
October 20, 2015, 7:59pm
123
Is the copper heatsink still available?
cncyana
October 20, 2015, 10:25pm
125
ok, thank you. Got it. So many BLF/X6-related threads out there.
vince
September 26, 2017, 9:06am
126
Hi, would this be likely to run again? I'd be keen to pick up a copper triple spacer for the X6.
vince
September 26, 2017, 3:12pm
128
Thanks mate - saw the link to your thread there (https://budgetlightforum.com/t/-/38581)
I'll peruse it after work today, and pop in an order.